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23x+12=7(x-3)
We move all terms to the left:
23x+12-(7(x-3))=0
We calculate terms in parentheses: -(7(x-3)), so:We get rid of parentheses
7(x-3)
We multiply parentheses
7x-21
Back to the equation:
-(7x-21)
23x-7x+21+12=0
We add all the numbers together, and all the variables
16x+33=0
We move all terms containing x to the left, all other terms to the right
16x=-33
x=-33/16
x=-2+1/16
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